91. From which group urea belongs to
92. A fertile soil is one which has more
93. If the moisture content of 0-15 cm, soil layer is 22%, then the moisture content in depth will be
94. Which one of the following is the biological method of soil conservation
95. A complex mixture of brown or dark brown amorphous and colloidal substances modified from the original tissues or synthesised by various soil organisms is referred as
96. Fertilizers containing Cl- ions are not suitable for
97. For Ectodynamomorphic Soil development, which are the active factor?
98. Sulphur containg Vitamins are
99. Differentiation between coniferous & desiduous plants are done by using which band of wave length in remote sensing?
100. Most common method of determining soluble B in soil is
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